equator
nounUK /ɪˈkweɪtə/
US /ɪˈkweɪtər/
An imaginary line around the middle of the Earth that divides it into the top half and the bottom half.
The equator passes through countries like Brazil and Kenya.
RELATED WORDS
OTHER MEANINGS
2. A circle around a sphere that is equally distant from its poles.
The equator of the globe was marked with a red line.
3. A line or circle dividing something into two equal parts.
The equator of the lens divides it into two halves.
4. In astronomy, the great circle of the celestial sphere midway between the celestial poles.
Astronomers use the celestial equator to locate stars.